Base de Connaissances

Dénomination des ions Protection - Déprotection Analyse rétrosynthétique Stratégies de rétrosynthèse. L'équation de Van der Waals

Base de Connaissances - Coach de chimie

1
26/11/2023
Formes des Molécules
Formes des Molécules
La forme a-t-elle une importance en géométrie moléculaire ? Quelle est la différence entre la géométrie moléculaire et la forme moléculaire ? Explorez la structure des molécules !
AXE method bonding pairs bonding patterns central atom ideal bond angle lone pair long-chain molecule molecular geometry molecular shape multiple bonds multiple central atoms non-polar physical properties polarity polar steric number structure of molecules VSEPR
2
26/11/2023
Qu'est-ce que la Table périodique ?
Qu'est-ce que la Table périodique ?
Qu'est-ce qu'une définition simple du tableau périodique ? Le tableau périodique peut être décrit de la manière la plus simple comme un diagramme qui organise les éléments chimiques en une représentation visuelle facile à identifier et à suivre.
periodic table chemical elements of matter periods groups atomic number electron shell configuration filling of electrons in valence shells Dimitri Mendeleev unstable elements transactinides element blocks s-block p-block d-block f-block non-reactive elements metals metalloids nonmetals g-block extended periodic table IUPAC The Long Periodic Table The 32-Column Periodic Table Madelung rule Aufbau principle
3
26/11/2023
Un guide rapide sur les propriétés de la matière.
Un guide rapide sur les propriétés de la matière.
Quelles sont les propriétés de la matière ? Apprenez-en davantage sur la structure de la matière, les différents états de la matière, les propriétés physiques vs chimiques, et bien plus encore !
intensive properties chemical potential concentration density magnetic permeability melting point boiling point specific gravity molality pressure refractive index specific conductance electrical conductivity specific heat capacity specific internal energy specific rotation specific volume standard reduction potential surface tension temperature thermal conductivity viscosity extensive properties amount of substance enthalpy entropy Gibbs energy heat capacity Helmholtz energy internal energy mass volume chemical properties ability to corrode acidity basicity substance chemical stability combustibility enthalpy of formation flammability heat of combustion preferred oxidation state toxicity average atomic mass  atomic size electron configuration electronegativity Pauling First Ionization Energy radii Van der Waals   covalent valence electrons electron gain enthalpy  electron affinity Properties of Matter physical properties extensive intensive chemical properties states of matter properties of elements periodic table compound homogeneous mixture heterogeneous mixture
4
26/11/2021
Shapes of Molecules
Shapes of Molecules
Does Shape Matter in Molecular Geometry? What is the Difference Between Molecular Geometry and Molecular Shape? Explore the structure of molecules!
AXE method bonding pairs bonding patterns central atom ideal bond angle lone pair long-chain molecule molecular geometry molecular shape multiple bonds multiple central atoms non-polar physical properties polarity polar steric number structure of molecules VSEPR
5
19/10/2021
What is the Periodic Table?
What is the Periodic Table?
What is a Simple Definition of the Periodic Table? The periodic table can most simply be described as a chart that organizes the chemical elements of matter into an easy-to-identify visual flow chart. 
periodic table chemical elements of matter periods groups atomic number electron shell configuration filling of electrons in valence shells Dimitri Mendeleev unstable elements transactinides element blocks s-block p-block d-block f-block non-reactive elements metals metalloids nonmetals g-block extended periodic table IUPAC The Long Periodic Table The 32-Column Periodic Table Madelung rule Aufbau principle
6
15/10/2021
A Quick Guide to the Properties of Matter
A Quick Guide to the Properties of Matter
What are the properties of matter? Learn about the structure of matter, different states of matter, physical vs. chemical properties, and more!
intensive properties chemical potential concentration density magnetic permeability melting point boiling point specific gravity molality pressure refractive index specific conductance electrical conductivity specific heat capacity specific internal energy specific rotation specific volume standard reduction potential surface tension temperature thermal conductivity viscosity extensive properties amount of substance enthalpy entropy Gibbs energy heat capacity Helmholtz energy internal energy mass volume chemical properties ability to corrode acidity basicity substance chemical stability combustibility enthalpy of formation flammability heat of combustion preferred oxidation state toxicity average atomic mass  atomic size electron configuration electronegativity Pauling First Ionization Energy radii Van der Waals   covalent valence electrons electron gain enthalpy  electron affinity Properties of Matter physical properties extensive intensive chemical properties states of matter properties of elements periodic table compound homogeneous mixture heterogeneous mixture